Question

side opposite to 60 and 90 formula​

Answer 1

Answer:

Step-by-step explanation:

Using the law of sine;

according to this law;

$\frac{a}{sinA} = \frac{b}{sinB} = \frac{c}{sinC}$;

Here a,b and c is the sides of the triangle and A,B, and C are the angle of triangle;

Other way ;

sum of all the angles of triangle = 180;

60 + 90 +x = 180;

x = 30 degree;

another angle